1 .Q: when the printer is turned on, the red light flashes or stays on, not the blue light?

     A: the red light is on when turning on the printer. usually, the upper cover is not pressed tightly. turn off the power of the printer first, press the upper cover firmly, and then turn on the printer. if the blue light is always on, it is normal.

2 .Q: the printer lights up blue, but when the computer clicks to print, the printer displays a red light and reports an error?

     A: an error is reported when printing. usually the paper is not placed correctly. the sensor of the machine is on the far left side, and the label must be placed on the far left side of the machine. if it is placed in the middle or on the right side, the machine cannot sense the paper and will report an error. just put the paper on the far left side.

3 .Q: the printer lights up blue. after printing on the computer, the printer does not respond or an error is reported in the lower right corner of the computer. the task is printed incorrectly?

     A: the machine does not respond or the computer reports an error. the problem is that the driver installation port is incorrectly selected. in the computer (control panel, printer), drive the debugging port or delete the driver and reinstall it.

4 .Q: the top and bottom positions of the printed content are not fixed, but are becoming more and more offset?

     A: the spacing in the software is not set correctly. the normal paper spacing should be set to 2. mm。

5 .Q: the left and right positions of the printed content are not fixed?

     A: check whether the buckle on the right side of the paper outlet is tight.

6 .Q: the printer power-on indicator light is not on, or the adapter light is not on?

     A: if the adapter does not light up, it usually means that the adapter is damaged. if it is within the warranty period, ask the customer to send it back for testing and then replace it. if it's out of warranty, you'll have to buy a new one. if the adapter lights up but the machine does not, the machine and adapter need to be sent back for testing.